@misc{indiciae86f54b20ff9a,
  title = {Some new luminance-gradient effects.},
  author = {D Zavagno},
  year = {1999},
  doi = {10.1068/p2633},
  url = {https://pubmed.ncbi.nlm.nih.gov/10664776/},
  note = {Source identifier: 10664776}
}